evo.com | Scarpa Alpine Touring Ski Boots > The most popular boot in the history of ski touring soldiers on, with the Scarpa Maestrale Alpine Touring Ski Boots conquering more skin tracks worldwide than any other boot on the market. Made of bio-based Pebax(R) R-New(R) plastic reinforced with Carbon Fiber, engineered to withstand some serious use and abuse, and with what many consider the ideal balance between lightness and skiability, the Maestrale continues to evolve and is still the leading option for general ski touring. Booster(R) Active Power Strap Forward Lean 16deg +/- 2deg Made in Italy Vibram(R) Cayman LT Outsole (ISO 9523 Touring) Flex: 110 Stiff flex for advanced to expert skers | Scarpa Maestrale Alpine Touring Ski Boots 2027 - 27.5 | Plastic